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Solar Physics

, Volume 226, Issue 2, pp 255–281 | Cite as

The NOAA Goes-12 Solar X-Ray Imager (SXI) 1. Instrument, Operations, and Data

  • S. M. Hill
  • V. J. Pizzo
  • C. C. Balch
  • D. A. Biesecker
  • P. Bornmann
  • E. Hildner
  • L. D. Lewis
  • R. N. Grubb
  • M. P. Husler
  • K. Prendergast
  • J. Vickroy
  • S. Greer
  • T. Defoor
  • D. C. Wilkinson
  • R. Hooker
  • P. Mulligan
  • E. Chipman
  • H. Bysal
  • J. P. Douglas
  • R. Reynolds
  • J. M. Davis
  • K. S. Wallace
  • K. Russell
  • K. Freestone
  • D. Bagdigian
  • T. Page
  • S. Kerns
  • R. Hoffman
  • S. A. Cauffman
  • M. A. Davis
  • R. Studer
  • F. E. Berthiaume
  • T. T. Saha
  • G. D. Berthiume
  • H. Farthing
  • F. Zimmermann
Article

Abstract

The Solar X-ray Imager (SXI) was launched 23 July 2001 on NOAA’s GOES-12 satellite and completed post-launch testing 20 December 2001. Beginning 22 January 2003 it has provided nearly uninterrupted, full-disk, soft X-ray solar images, with a continuous frame rate significantly exceeding that for previous similar instruments. The SXI provides images with a 1 min cadence and a single-image (adjustable) dynamic range near 100. A set of metallic thin-film filters provides temperature discrimination in the 0.6 – 6.0 nm bandpass. The spatial resolution of approximately 10 arcsec FWHM is sampled with 5 arcsec pixels. Three instrument degradations have occurred since launch, two affecting entrance filters and one affecting the detector high-voltage system. This work presents the SXI instrument, its operations, and its data processing, including the impacts of the instrument degradations. A companion paper (Pizzo et al., this issue) presents SXI performance prior to an instrument degradation that occurred on 5 November 2003 and thus applies to more than 420000 soft X-ray images of the Sun.

Keywords

Data Processing Frame Rate Companion Paper Temperature Discrimination Solar Image 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  • S. M. Hill
    • 1
  • V. J. Pizzo
    • 1
  • C. C. Balch
    • 1
  • D. A. Biesecker
    • 1
  • P. Bornmann
    • 1
    • 10
  • E. Hildner
    • 1
  • L. D. Lewis
    • 1
  • R. N. Grubb
    • 1
  • M. P. Husler
    • 1
  • K. Prendergast
    • 1
  • J. Vickroy
    • 1
  • S. Greer
    • 1
  • T. Defoor
    • 1
  • D. C. Wilkinson
    • 2
  • R. Hooker
    • 3
  • P. Mulligan
    • 3
  • E. Chipman
    • 4
  • H. Bysal
    • 4
  • J. P. Douglas
    • 4
  • R. Reynolds
    • 4
  • J. M. Davis
    • 5
  • K. S. Wallace
    • 5
  • K. Russell
    • 5
  • K. Freestone
    • 5
  • D. Bagdigian
    • 5
  • T. Page
    • 5
  • S. Kerns
    • 5
  • R. Hoffman
    • 5
  • S. A. Cauffman
    • 6
  • M. A. Davis
    • 6
  • R. Studer
    • 6
  • F. E. Berthiaume
    • 6
  • T. T. Saha
    • 6
  • G. D. Berthiume
    • 7
  • H. Farthing
    • 8
  • F. Zimmermann
    • 9
    • 11
  1. 1.NOAA Space Environment CenterBoulderU.S.A.
  2. 2.NOAA National Geophysical Data CenterBoulderU.S.A.
  3. 3.NOAA NESDISSilver SpringU.S.A.
  4. 4.NOAA NESDIS/SOCCSuitlandU.S.A.
  5. 5.NASA Marshall Space Flight CenterHuntsvilleU.S.A.
  6. 6.NASA Goddard Space Flight CenterGreenbeltU.S.A.
  7. 7.MIT Lincoln LaboratoriesLexingtonU.S.A.
  8. 8.Swales AerospaceBeltsuilleU.S.A.
  9. 9.Space Systems LoralPalo AltoU.S.A.
  10. 10.Ball Aerospace & Technologies Corp.BoulderU.S.A.
  11. 11.Swales AerospaceBeltsuilleU.S.A.

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